1. Graduate Institute of Nursing, Chang Gung University, Kwei-Shan, Tao-Yuan, Taiwan
2. Health Management and Policy, School of Public Health, University of Michigan, Ann Arbor, Michigan
3. Center for Health Industry Management & Public Policy, Department of Health Care Management, Chang Gung University, Kwei-Shan, Tao-Yuan, Taiwan
4. Department of Orthopedics, Chang Gung Memorial Hospital, Kwei-Shan, Tao-Yuan, Taiwan